Removal Of The Main Pcb Assy - Mitsubishi Electric SD420U Service Manual

2.Removal of the MAIN PCB ASSY

1. Remove the top cover and front ASSY following "1.
Removal of the top cover and front ASSY."
2. Remove the eight screws (a) and one screw (b) as
shown in Fig. 2-2-1.
3. Remove the four screws (a) as shown in Fig. 2-2-2.
4. Disconnect all the connectors (including the board-to-
board connector) on the MAIN PCB ASSY.
5. Remove the MAIN PCB ASSY as shown in Fig. 2-2-2.
Note: On the back of the MAIN PCB ASSY, it is connected
with the DMD PCB ASSY by the board-to-board
connector. When assembling the DMD PCB ASSY,
be sure to attach the board-to-board connector
securely.
a
a
b
a
a
MAIN PCB ASSY
- 8 -
Fig. 2-2-1
a
a
a
Board-to-board
connector
Fig. 2-2-2